Hide from GAL Not working remote sync'd Mailboxes

Question

Good Morning,

Getting this issue when trying to hide/unhide Exchange Online Mailboxes from the GAL using the Exchange section:

These accounts/mailboxes are anchored on prem with AAD Sync. AAD Sync is working normally and if I modify the AD Attribute directly it sync's and works, the issue only arises when trying to uncheck the "Hide from Exchange Lists" section of exchange which was working previously.

Answer 1

Hello,

Unfortunately, this is currently a known issue, but there is no workaround in Adaxes. It is due to the changes made by Microsoft on their side. However, it is also possible that the issue is just temporary. As of now, you can just make the corresponding changes on-premises using native tools.

Comments

Do you happen to know what changes Microsoft made or have a link for more information? Thanks!

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Hello,

When there is an attempt to update something in Exchange Online but it has t be done on-premises, a certain error is returned. The error allows Adaxes to switch to performing the update on-premises. As per our investigation, Microsoft changed the error text.